Unfortunately its not upgradeable, but at £50 -£70 (guestimate) for the motherboard (and CPU soldered in), I'm not complaining
The cpu and RAM were getting a good workout, But I'm only ever running one application, although it is a media center type application, so it involves picture viewers, media players, decoders, recording to hdd, etc.
So anyway, Intel already have a version of the GC330 out, so I was going to get one of those, but now Gigabyte have released their's, I'm just waiting til the first ones start filtering thru the distribution chain, and get myself one.
Oh and BTW, there is only one memory slot, and it supports a maximum of 2GB DDR 533/667. Which is unfortunate, as you are unable to take advantage of Dual Channel configuration.